Calculate the arc length of the indicated portion of the curve r(t).r(t) = 3ti + 
j + 
k; -4? t ? 7
A. 75
B. 275
C. 15
D. 55
Answer: D
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Integrate the function f over the given region.f(x, y) = y2 ex4 over the triangular region in the first quadrant bounded by the lines x = y/3, x = 1, y = 0
A. 27(e + 1)
B. 
(e - 1)
C. 9(e - 1)
D. 
e
Make the required change in the given equation.x = -3 to cylindrical coordinates
A. ? = arccos -3 B. r cos ? sin ? = -3 C. r cos ? = -3 D. Not enough information to answer
Provide an appropriate response.In oblique triangle ABC, find the indicated part. Round to the nearest 0.1°. Find C if B = 30°, b = 10 m, and c = 8 m.
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.What formula best describes the calculation of present value for an amount compounded annually?
A. PV = P × R × T B. maturity value divided by 1 + interest rate C. maturity value - compound interest D. present value divided by 1 + interest rate